LOW SIGNAL NOISE RATIO FFT

1. What does low signal-to-noise ratio mean?
2. Is low SNR good?
3. Should SNR be low or high?

What does low signal-to-noise ratio mean?

A low signal to noise ratio means that the system noise is very loud compared to your sound. This could make the content of the sound obscured, degraded or hard to hear. You'll often see strong signal-to-noise ratio listed as a positive feature of well-designed gear.

Is low SNR good?

The higher the ratio, the better the signal quality. For example, a Wi-Fi signal with S/N of 40 dB will deliver better network services than a signal with S/N of 20 dB.

Should SNR be low or high?

Generally, a signal with an SNR value of 20 dB or more is recommended for data networks where as an SNR value of 25 dB or more is recommended for networks that use voice applications.